Intel Core i5-10400F vs Intel Core i5-9500 Comparison

The Intel Core i5-9500 and Intel Core i5-10400F are both six-core desktop processors with 65W TDPs, but they target different moments in Intel's product cycle. The i5-9500 is a Coffee Lake Refresh part for Socket 1151, while the i5-10400F is a Comet Lake chip for Socket 1200. The database shows a clear performance hierarchy: the i5-10400F wins 15 of the 19 head-to-head benchmarks, while the i5-9500 takes 4. The decisive factor is threading. The i5-10400F has 12 threads versus 6 on the i5-9500, and that advantage shows up across rendering, compression, and math workloads. However, the i5-9500 is not entirely swept aside; it holds narrow wins in a few single-threaded and specific instruction tests.

Where Each One Wins

The Intel Core i5-10400F is the pick for heavily threaded workloads. Its 12 threads deliver a 25.1% lead in Cinebench R15, R20, and R23 multi-core tests, and a 13.7% advantage in Geekbench multi-core. The gap widens further in integer math, where the i5-10400F scores 41471 versus 27574, a 33.5% margin. Data compression follows the same pattern: 185944 for the i5-10400F against 136283 for the i5-9500, a 26.7% difference. Random string sorting also favors the newer chip by 27.1%. For anyone running video encoding, 3D rendering, or batch file processing, the i5-10400F is the stronger option.

The Intel Core i5-9500 wins the single-thread shootout in Geekbench, scoring 1448 against 1420, a 2% margin. It also edges out the i5-10400F in PassMark single-thread tests: 2565 versus 2541, a 0.9% difference. Prime number finding is another narrow victory for the i5-9500, 36 versus 35, a 2.9% lead. These wins are small, but they indicate that the older chip can still hold its own in lightly threaded tasks where clock behavior and per-core efficiency matter more than thread count. Both processors boost to 4.30 GHz, so the i5-9500's slight single-thread edge likely comes from its 3.00 GHz base clock versus the i5-10400F's 2.90 GHz.

FAQ

Q: Which processor has better multi-core performance?

A: The Intel Core i5-10400F wins every multi-core benchmark in the database. It leads by 25.1% in Cinebench R23 multi-core (10283 versus 7705), 33.5% in PassMark integer math (41471 versus 27574), and 18.9% in PassMark multithread (12115 versus 9826).

Q: Does the Intel Core i5-9500 win any benchmarks?

A: Yes, it wins 4 of the 19 head-to-head tests: Geekbench single-core (1448 versus 1420, 2% lead), PassMark single-thread (2565 versus 2541, 0.9% lead), PassMark find prime numbers (36 versus 35, 2.9% lead), and the duplicate PassMark singlethread test.

Q: Are both processors the same generation?

A: No. The i5-9500 is from the Coffee Lake Refresh generation, released in October 2018. The i5-10400F is from the Comet Lake generation, released in April 2020. Both use a 14 nm process node from Intel.

Q: What is the thread count difference?

A: The i5-9500 has 6 threads total across its 6 cores. The i5-10400F has 12 threads across its 6 cores, meaning it supports Hyper-Threading. This doubles the thread count and explains most of the multi-core performance gap.

Q: Which processor has more L3 cache?

A: The Intel Core i5-10400F has 12 MB of shared L3 cache, while the i5-9500 has 9 MB of shared L3 cache. Both have 64 KB of L1 cache per core and 256 KB of L2 cache per core.

Q: Do both processors support the same memory?

A: Yes, both support DDR4 memory in dual-channel configuration with a memory bandwidth of 42.7 GB/s. Neither supports ECC memory.

Head-to-Head Benchmarks

The Cinebench suite delivers a consistent story. Across R15, R20, and R23, the i5-10400F beats the i5-9500 by exactly 25.1% in multi-core and single-core tests. In Cinebench R23 multi-core, the scores are 10283 versus 7705. In R23 single-core, they are 1451 versus 1087. The same 25.1% delta appears in R15 and R20, which suggests the performance gap is structural, driven by thread count, not workload-specific quirks.

Geekbench splits the pair. The i5-10400F wins multi-core with 6257 versus 5402, a 13.7% margin. But the i5-9500 takes single-core with 1448 versus 1420, a 2% edge. This split is notable because it shows the i5-9500 is not universally slower; it simply lacks the parallel throughput of the newer part.

PassMark tests reveal where the i5-10400F's extra threads matter most. Integer math is the biggest gap: 41471 versus 27574, a 33.5% lead for the i5-10400F. Data compression follows at 26.7% (185944 versus 136283), and random string sorting at 27.1% (23185 versus 16894). Floating point math is closer, 25956 versus 23788, an 8.4% margin. Data encryption shows a 23.8% lead for the i5-10400F (4100 versus 3125). Extended instructions are nearly tied, with the i5-10400F ahead by only 3.3% (12500 versus 12088). Physics simulation favors the i5-10400F by 11.1% (696 versus 619). PassMark multithread lands at 12115 versus 9826, an 18.9% gap.

The i5-9500's wins are small but real. Prime number finding shows 36 versus 35, a 2.9% lead. PassMark single-thread shows 2565 versus 2541, a 0.9% lead. These are the only areas where the older chip outperforms, and the margins are within a few percent.

Specification Differences

The two CPUs diverge on several key specifications. The i5-9500 has 6 threads, while the i5-10400F has 12 threads. Both have 6 cores. Base clocks differ: the i5-9500 runs at 3.00 GHz, the i5-10400F at 2.90 GHz. Boost clocks are identical at 4.30 GHz. L3 cache differs, with the i5-10400F offering 12 MB shared versus 9 MB shared on the i5-9500. L1 and L2 caches are the same: 64 KB per core and 256 KB per core, respectively.

Socket compatibility is different. The i5-9500 uses Intel Socket 1151, while the i5-10400F uses Intel Socket 1200. This means they are not drop-in interchangeable on the same motherboard. Process node is the same: 14 nm from Intel. Both are desktop parts with 65W TDP. Both support DDR4 memory in dual-channel mode with 42.7 GB/s bandwidth. Neither supports ECC memory. Both have PCIe Gen 3 with 16 lanes from the CPU.

Integrated graphics also separate them. The i5-9500 includes Intel UHD 630 graphics. The i5-10400F has no integrated graphics, as indicated by the F suffix. This makes the i5-9500 a better fit for a system without a discrete GPU, while the i5-10400F requires a dedicated graphics card for display output.

Production status differs as well. The i5-9500 is end-of-life, while the i5-10400F is listed as active. Release dates are also far apart: the i5-9500 launched in October 2018, and the i5-10400F in April 2020. Neither chip has a multiplier unlock, so overclocking is not supported on either.

Architecture Differences

The i5-9500 is built on Coffee Lake, specifically the Coffee Lake Refresh generation. The i5-10400F uses Comet Lake. Both are 14 nm parts from Intel, but they represent different architectural iterations. Coffee Lake Refresh was Intel's refinement of the earlier Coffee Lake design, while Comet Lake was the follow-up that brought higher thread counts to the mainstream desktop lineup.

The most impactful architectural difference is threading. Coffee Lake Refresh parts like the i5-9500 do not support Hyper-Threading on the i5 tier, leaving the chip at 6 threads. Comet Lake introduced Hyper-Threading to the i5 tier, giving the i5-10400F 12 threads. This single change accounts for the bulk of the performance delta in multi-threaded workloads.

Cache hierarchy also differs. The i5-10400F has 12 MB of shared L3 cache, 3 MB more than the i5-9500's 9 MB. The per-core L1 and L2 caches are unchanged across both architectures, at 64 KB and 256 KB per core. The larger L3 pool on the Comet Lake part helps with data-heavy workloads, though the benchmark data shows the thread count advantage dominates.

Socket changes are tied to the architecture generation. Coffee Lake Refresh uses Socket 1151, while Comet Lake uses Socket 1200. The i5-10400F also lacks integrated graphics, a feature that the i5-9500 includes via UHD 630. Both parts are locked, with no unlocked multiplier, and both are desktop-oriented processors with a 65W TDP. The average benchmark scores reflect the overall gap: the i5-10400F sits at 14185 versus 13452 for the i5-9500, a difference of roughly 5.4%. Both processors land at the 68th percentile among all CPUs in the database, but the i5-10400F's nearest rivals include server-class parts like the Xeon 6756E and EPYC 7552, while the i5-9500 sits alongside the Core i3-12100F and Core 7 120UL.